Low-Energy Collisions of Protonated Enantiopure Amino Acids with Chiral Target Gases
Kulyk, K.; Rebrov, O.; Ryding, M.; Thomas, R.; Uggerud, E.; Larsson, M.
2017-09-21 00:00:00
Here we report on the gas-phase interactions between protonated enantiopure amino acids (l- and d-enantiomers of Met, Phe, and Trp) and chiral target gases [(R)- and (S)-2-butanol, and (S)-1-phenylethanol] in 0.1–10.0 eV low-energy collisions. Two major processes are seen to occur over this collision energy regime, collision-induced dissociation and ion-molecule complex formation. Both processes were found to be independent of the stereo-chemical composition of the interacting ions and targets. These data shed light on the currently debated mechanisms of gas-phase chiral selectivity by demonstrating the inapplicability of the three-point model to these interactions, at least under single collision conditions.
http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.pngJournal of The American Society for Mass SpectrometrySpringer Journalshttp://www.deepdyve.com/lp/springer-journals/low-energy-collisions-of-protonated-enantiopure-amino-acids-with-2LHMKVfYRI

Abstract

Here we report on the gas-phase interactions between protonated enantiopure amino acids (l- and d-enantiomers of Met, Phe, and Trp) and chiral target gases [(R)- and (S)-2-butanol, and (S)-1-phenylethanol] in 0.1–10.0 eV low-energy collisions. Two major processes are seen to occur over this collision energy regime, collision-induced dissociation and ion-molecule complex formation. Both processes were found to be independent of the stereo-chemical composition of the interacting ions and targets. These data shed light on the currently debated mechanisms of gas-phase chiral selectivity by demonstrating the inapplicability of the three-point model to these interactions, at least under single collision conditions.

Journal

Journal of The American Society for Mass Spectrometry
– Springer Journals

Published: Sep 21, 2017

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